Parameters

connection

The connection identifier.

objectID

The object identifier, or an array of identifiers.

query

The query string has the following syntax:

<expr> ::= "(" <expr> ")" |
           "!" &lt;expr> |          /* NOT */
           <expr> "||" <expr> |  /* OR */
           <expr> "&amp;&amp;" <expr> |  /* AND */
           <attribute> <operator> <value>

<attribute> ::= /* any attribute name (Title, Author, DocumentType ...) */

<operator> ::= "=" |    /* equal */
               "<" |    /* less than (string compare) */
               ">" |    /* greater than (string compare) */
               "~"      /* regular expression matching */

The query allows to further select certain objects from the list of given objects. Unlike the other query functions, this query may use not indexed attributes. How many object records are returned depends on the query and if access to the object is allowed.